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Seagate Enterprise Capacity 2.5 HDD v3 SAS Product Manual, Rev. D 12
3.5 Formatted capacities
Standard OEM models are formatted to 512 bytes per block for 512E (emulation) and 512N (native) drives and 4096 bytes per block for
4096N (native) drives. The block size is selectable at format time. Supported block sizes are 512, 520, 524, and 528 for 512E and 512N
drives and 4096, 4160, 4192, and 4224 for 4096N drives. Users having the necessary equipment may modify the data block size before
issuing a format command and obtain different formatted capacities than those listed.
To provide a stable target capacity environment and at the same time provide users with flexibility if they choose, Seagate recommends
product planning in one of two modes:
Seagate designs specify capacity points at certain block sizes that Seagate guarantees current and future products will meet. We
recommend customers use this capacity in their project planning, as it ensures a stable operating point with backward and forward
compatibility from generation to generation. The current guaranteed operating points for this product are:
3.6 Programmable drive capacity
Using the Mode Select command, the drive can change its capacity to something less than maximum. See the Mode Select (6) parameter
list table in the SAS Interface Manual, part number 100293071. A value of zero in the Number of Blocks field indicates that the drive will not
change the capacity it is currently formatted to have. A number other than zero and less than the maximum number of LBAs in the Number
of Blocks field changes the total drive capacity to the value in the Number of Blocks field. A value greater than the maximum number of
LBAs is rounded down to the maximum capacity.
3.7 Factory-installed options
The following items may be ordered which are incorporated at the manufacturing facility during production or packaged before shipping.
Some of the options available are (not an exhaustive list of possible options):
• Other capacities can be ordered depending on sparing scheme and sector size requested.
• Single-unit shipping pack. The drive is normally shipped in bulk packaging to provide maximum protection against transit damage.
Units shipped individually require additional protection as provided by the single unit shipping pack. Users planning single unit distribu
-
tion should specify this option.
• The Safety and Regulatory Agency Specifications, part number 75789512, is usually included with each standard OEM drive shipped,
but extra copies may be ordered.
Capacity (Blocks)
Sector Size
2TB 1TB
Decimal Hex Decimal Hex
512
3,907,029,168 E8E088B0
1,953,525,168 74706DB0
520
3,824,358,992 E3F31650
1,923,076,936 729FD348
524
3,773,385,336 E0E94A78 1,882,972,568 703BE198
528
3,719,165,192 DDADF508
1,876,331,336 6FD68B48
4096
488,378,646 1D1C1116
244,190,646 E8E0DB6
4160
478,846,160 1C8A9CD0
239,423,080 E454E68
4192
472,805,344 1C2E6FE0 236,402,672 E1737F0
4224
469,223,488 1BF7C840
234,611,744 DFBE420